1. Cardiovascular Institute; Stanford University School of Medicine; Stanford California USA
2. Division of Cardiovascular Medicine; Stanford University School of Medicine; Stanford California USA
3. Department of Cardiovascular Medicine; Hiroshima University Graduate School of Biomedical and Health Sciences; Hiroshima Japan
4. Tsukuba Advanced Imaging Center; Tsukuba Japan
5. Department of Chemistry; Indiana University; Bloomington Indiana USA
6. Division of Vascular Surgery; Stanford University School of Medicine; Stanford California USA
7. Magnetic Resonance Systems Research Laboratory, Department of Electrical Engineering; Stanford University School of Medicine; Stanford California USA